The O'Brien Blue Youth Life Vest is a great option for keeping your child safe and protected as they start to get a little older and don't need all the extras that the younger vests have. BioLite Technology on the vest helps keep it lightweight and very breathable. BioLite is also a comfortable material that's environmentally friendly as well as more resistant to mold and mildew for those times you toss it in the garage or keep it on the boat. The two buckles and zipper will help customize the vest to your child's body shape as they grow throughout the summer and the Wide Armholes are great for their mobility so your child doesn't feel constricted inside their Life Jacket.